Search found 3 matches
- Fri Oct 15, 2021 1:16 am
- Forum: Hardware
- Topic: Issue with ESP32 SD communications using SPI for frequencies other than 20/40MHz.
- Replies: 0
- Views: 2133
Issue with ESP32 SD communications using SPI for frequencies other than 20/40MHz.
Hi, I am using ESP-WROVER-IE to communicate with an SD card using the VSPI interface. I am basically using the SD card example code from Github, with pins modified to use the default VSPI pins required for my application: [Codebox] #define PIN_NUM_MISO 19 #define PIN_NUM_MOSI 23 #define PIN_NUM_CLK ...
- Thu Aug 19, 2021 6:08 am
- Forum: Hardware
- Topic: Need guidelines: wiring and configuring an external 32Khz oscillator input in EDP-IDF
- Replies: 10
- Views: 20131
Re: Need guidelines: wiring and configuring an external 32Khz oscillator input in EDP-IDF
Hi ESP_LJH,
Can you provide more details on the results of the testing, specifically the impact of NOT fitting the capacitor to 32K_XP? Have the hardaware design guidelines been updated to show the results of these tests?
Thank you.
Can you provide more details on the results of the testing, specifically the impact of NOT fitting the capacitor to 32K_XP? Have the hardaware design guidelines been updated to show the results of these tests?
Thank you.
- Thu Aug 19, 2021 6:06 am
- Forum: Hardware
- Topic: Need guidelines: wiring and configuring an external 32Khz oscillator input in EDP-IDF
- Replies: 10
- Views: 20131
Re: Need guidelines: wiring and configuring an external 32Khz oscillator input in EDP-IDF
Hello, we are testing about connecting to an external 32.768 khz oscillator and we will update hardware design guideline later, here are some results for you to refer, clock signal will be input to 32K_XN: 1. sinc wave, 0~3.3 V, with/without cap at 32K_XP, but it is suggested to add cap; 2. square ...